VI_Computer_Scratch 2.0

 Scratch 2.0

Q. I Identify and name the effects which changes the sprite as per the description given below :
1. Reeta wanted to make the bird sprite appear as many birds on stage.
Name of the Effect: Mosaic
2. Anil created a dog sprite which gives an impression that seems like seen through a wide angled lens.
Name of the Effect: Fisheye

Q. II Write the scripts required to do the following transitions:
1.Script: set size to 50%

2.Script: change brightness effect by 75

Q. III Label the components of Scratch’s Paint Editor: SELF

Q. IV Answer in brief: 
1. State the difference between brightness and ghost effect in Scratch.
Brightness effect changes the brightness of the image and Ghost effect changes the transparency of the image

2. Explain the script block .
The script block explains whenever the space bar key will be pressed it will lead to certain action. It is mostly used inside the ‘if block’.

3. Describe ‘if block’.
The ‘if block’ is used to test a condition and execute the script inside it if the condition is true.

Q. V What would be the output if the given script is applied on a sprite? Define Forever block and its uses.
Here the sprite will move 10 steps ahead. Every time it touches the edge of the stage it will make 5 small copies of itself and turn to 45 degree angle. This whole process will continue forever till the stop button is clicked. Forever block is used to execute scripts in a continuous loop. Some possible uses of these effects when used inside a ‘forever’ block could be
to use as a transition between different costumes
to make the sprite look as if it is flashing
to make the sprite look fatter or dented or spinning.
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